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Updated: Jun 5, 2026

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition
Published on: March 11, 2021
[Typical patient radiation doses in diagnostic imaging].
J-F Chateil1, B Aubert, H Brisse
1Service d'Imagerie Anténatale, de l'Enfant et de la Femme, Hôpital Pellegrin, Place A Raba Léon, 33076 Bordeaux Cedex, France. jean-francois.chateil@chu-bordeaux.fr
Radiologists can now calculate patient radiation dose in Gray from radiology reports. Formulas provided allow effective dose calculation in Sievert for comparison with background radiation exposure.
Area of Science:
- Medical Imaging
- Radiology
- Radiation Dosimetry
Context:
- Accurate patient radiation dose assessment is crucial for diagnostic procedures.
- Radiology reports should contain data for effective dose calculation.
- Effective dose allows comparison with other radiation exposure sources.
Purpose:
- To provide radiologists with methods to calculate patient radiation dose.
- To enable reporting of effective dose in Sievert for routine diagnostic imaging.
- To offer simple formulas for effective dose calculation based on dose-area or dose-length products.
Summary:
- Formulas are presented to calculate effective dose (Sievert) from dose-area product (radiography) or dose-length product (CT).
- Calculated effective doses for conventional radiography are generally less than or equal to annual background radiation.
- CT effective doses range from 1 to 10 years of annual background radiation.
Impact:
- Enhances radiologist understanding of patient radiation exposure.
- Facilitates standardized reporting of radiation doses in radiology.
- Aids in patient communication regarding radiation risks and benefits.
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